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    Basic Training for Tree Climbers CEU workbook
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    Climbers' CornerTree Academy

    Trees and Sidewalks: Infrastructure Coexisting Side by Side


    Most community street trees are adjacent to sidewalks and curbs. Proper design, repair retrofit, and prevention can allow the two community infrastructure elements to co-exist side by side. Improper design can cost a community millions of dollars in repairs, and reduces the shade canopy.

    The session will discuss the causes, available materials, design options, and transitional steps to extend the life of trees and sidewalks for communities, reducing future costs, and preserving shade canopy.


    Gordon Mann is a consulting arborist and urban forester living in Auburn, CA with 35 years of urban forestry experience.  For 30 years he served the public managing the urban forest in Brookfield, Illinois; San Mateo, California; and as Public Works Superintendent and City Arborist in Redwood City, California. He supported 28 agencies leading the Greenprint urban forest initiative with the Sacramento Tree Foundation. His company, Mann Made Resources, was established in 1986 providing consulting services and tree friendly products. Gordon is passionate about the value and benefits from trees, writing clear specifications, promoting industry standards, using sound criteria for decision making, and young tree management. He received the True Professional in Arboriculture award from the ISA in 2011.

     Gordon participates in the following professional associations:

    • Board Member and President, American Society of Consulting Arborists (ASCA), Registered Consulting    Arborist #480
    • Board Member California Urban Forest Council (CaUFC), Certified Urban Forester #127
    • Society of Municipal Arborists past representative to the ANSI A300 tree management standards committee
    • Member International Society of Arboriculture (ISA), ISA Certified Arborist and Municipal Specialist #WE-0151 AM; PNWISA Certified Tree Risk Assessor # 1005
    • Member Western Chapter International Society of Arboriculture (WCISA), past president, current municipal committee chair, Certification proctor
    • Member Society of Municipal Arborists (SMA), past board member
    • Member California Arborist Association (CAA), past president

    Gordon is a past chair of the Northern California Tree Climbing Competition (13 years) and the International Tree Climbing Competition (3 years). He served as a Director on the Society of Municipal Arborists (SMA) board for two terms.

    Climbers' CornerTree Academy

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